Little Bit of Exercise, Big Benefits

ScienceDaily: A new University of Colorado Boulder study shows that a small amount of physical exercise could profoundly protect the elderly from long-term memory loss that can happen suddenly following infection, illnesses or injury in old age.

In the study, CU-Boulder Research Associate Ruth Barrientos and her colleagues showed that aging rats that ran just over half a kilometer each week were protected against infection-induced memory loss.

“Our research shows that a small amount of physical exercise by late middle-aged rats profoundly protects against exaggerated inflammation in the brain and long-lasting memory impairments that follow a serious bacterial infection,” said Barrientos of the psychology and neuroscience department.

“Strikingly, this small amount of running was sufficient to confer robust benefits for those that ran over those that did not run,” Barrientos said. “This is an important finding because those of advanced age are more vulnerable to memory impairments following immune challenges such as bacterial infections or surgery. With baby boomers currently at retirement age, the risk of diminished memory function in this population is of great concern. Thus, effective noninvasive therapies are of substantial clinical value.”

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Building Smarter Beings

By Riddhi Shah of the HuffingtonPost: Over the last decade, interest in the science of meditation has skyrocketed. We now know more than ever before about just how meditation affects our minds and bodies. Increased research has led to a plethora of fascinating discoveries: Take, for instance, the fact that meditation can prevent heart disease. Or that it reduces stress. Or that it can significantly lessen ADHD symptoms, and in many cases, beats medication.

Still, much is left to be discovered. We know more but we definitely don’t know everything. While we wait for science to catch up with ancient wisdom, check out this slideshow on the complex effects of the simple act of focused breathing [here are its salient points]:

• [S]ustained meditation leads to something called neuroplasticity, which is defined as the brain’s ability to change, structurally and functionally, on the basis of environmental input. For much of the last century, scientists believed that the brain essentially stopped changing after adulthood. But research by University of Wisconsin neuroscientist Richard Davidson has shown that experienced meditators exhibit high levels of gamma ray activity and display an ability — continuing after the meditation session has attended — to not get stuck on a particular stimulus. That is, they’re automatically able to control their thoughts and reactiveness.

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Olive Oil May Prevent Stroke

From ScienceDaily: A new study suggests that consuming olive oil may help prevent a stroke in older people. The research is published in the June 15, 2011, online issue of Neurology®, the medical journal of the American Academy of Neurology.

“Our research suggests that a new set of dietary recommendations should be issued to prevent stroke in people 65 and older,” said study author Cécilia Samieri, PhD…”Stroke is so common in older people and olive oil would be an inexpensive and easy way to help prevent it.”

For the study, researchers looked at the medical records of 7,625 people ages 65 and older from three cities in France…the study participants mainly used extra virgin olive oil, as that is 98 percent of what is available in France…After considering diet, physical activity, body mass index and other risk factors for stroke, the study found that those who regularly used olive oil for both cooking and as dressing had a 41 percent lower risk of stroke compared to those who never used olive oil in their diet (1.5 percent in six years compared to 2.6 percent).

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The Power of Smiling

At Ted.Com

Meditation For ADHD Teens & Adults

Mindfulness meditation significantly helped three-quarters of the participants in a study described here by Dr. David Rabiner: Because of the wide spread interest in new ADHD interventions — particularly non-pharmaceutical approaches — I try to cover credible research in this area when ever I come across it. I was thus pleased to learn about a very interesting study of mindfulness meditation as a treatment for adults and adolescents with ADHD that was published in the Journal of Attention Disorders.

Although medication treatment is effective for many individuals with ADHD, including adolescents and adults, there remains an understandable need to explore and develop interventions that can complement or even substitute for medication. (…)

In recent years, mindfulness meditation has been used as a new approach for stress reduc­tion and incorporated into the treatment for a variety of psychiatric dis­orders, including depression, anxiety, and substance abuse. Of special rele­vance to the treatment of ADHD are findings that meditation has the potential to regulate brain functioning and attention. For example, research has demon­strated that mindfulness meditation can modify attentional networks, modulate EEG patterns, alter dopamine levels, and change neural activity.

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